{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["content container", "instrument agency"], "input": "he cleaned his piano keys , using the proposed tips , but also remembered : playing with clean hands can prevent future headache ."}
{"content container": [], "instrument agency": []}